Fog in Bella Bella, BC

daily fog outlook & 2016–2026 climatology
Fog possible — NWS guidance shows a fog signal in the next 48 hours. August typically brings about 25 hours of dense fog here.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at Bella Bella (Campbell Island) Airport (CBBC). This station is in forecast verification — percentages publish when it clears the accuracy bar.

Measuring station

stationairportfog hours/yrforecast
CBBCBella Bella (Campbell Island) Airport189 h/yrverifying

Fog is measured where instruments live — airports. Hours/yr = time below CAT I approach minima (visibility under ~½ mile or ceiling under 200 ft), the aviation definition of seriously dense fog.

When Bella Bella fogs in

Fog here concentrates in September and October — about 189 hours in a typical year at CBBC, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the CBBC station page.

Fog season

January: ~18 hJanFebruary: ~12 hFebMarch: ~11 hMarApril: ~12 hAprMay: ~8 hMayJune: ~5 hJunJuly: ~9 hJulAugust: ~25 hAugSeptember: ~32 hSepOctober: ~26 hOctNovember: ~19 hNovDecember: ~17 hDec
Fog season runs July through May, peaking in September; fog is mostly a 2 AM–9 AM phenomenon; typically thinning out by 11 AM; a typical event lasts about 2 hours once it forms local time · 10-yr average

Machine access: data.json · llms.txt · forecast verification. Not for operational use.